| |
KF5JRV > WX 30.09.20 11:01z 68 Lines 3429 Bytes #999 (0) @ WW
BID : 737_KF5JRV
Read: GUEST
Subj: NWS USA WX Forecast - Sep 30
Path: HB9ON<IW2OHX<IQ2LB<IR2UFV<N3HYM<W0ARP<KF5JRV
Sent: 200930/1035Z 737@KF5JRV.#NWAR.AR.USA.NA BPQ6.0.20
Short Range Forecast Discussion
NWS Weather Prediction Center College Park MD
342 AM EDT Wed Sep 30 2020
Valid 12Z Wed Sep 30 2020 - 12Z Fri Oct 02 2020
...Below average temperatures to engulf the eastern half of the Lower 48
the second half of the week...
...California heat wave looks to continue through the remainder of the
week; Fire weather danger persists in California and northern Plains...
...Wet morning followed by a drier afternoon in the Northeast, heavy rain
and thunderstorms in South Florida, Scattered showers across the Great
Lakes...
As the calendar gets ready to flip over to October, temperatures from the
Plains to the East Coast will plunge to October-like levels as a pair of
cold fronts usher in reinforcing shots of cool Canadian air. A strong cold
front exiting off the East Coast this morning results in a seasonally cool
Wednesday for much of the eastern third of the country with only New
England managing above normal high temps today. Meanwhile in the Midwest,
another cold front races south and east today through the Nation's
Heartland. North of the front, temperatures will feel more like
mid-October while the Southern Plains stay balmy for one more day as high
temps make a run at 90 degrees in some spots. Eventually, the front will
push across the South-Central U.S. by Thursday, causing temperatures to
drop to below normal levels as far south as the Gulf Coast by Friday. This
same front crosses the Appalachians on Thursday and another round of below
normal temperatures arrives up and down the East Coast by Friday.
In contrast, a strong upper-level high over the West Coast is allowing
sizzling temperatures to take shape in California with much above normal
temps extending as far north as the Pacific Northwest. Heat Advisories are
in place from San Diego to Los Angeles today with high temperatures
ranging between 90 and 100 degrees on average. By Thursday, the stifling
heat reaches the Bay Area where Heat Advisories are also in effect.
Additionally, an elevated risk for fire weather sticks around for one more
day over parts of the northern High Plains and in Southern California
through Thursday. Due to excessive smoke in parts of the West, Air Quality
Alerts have been posted for portions of California and the central High
Plains.
Much of the CONUS can expect mostly dry conditions through Friday morning
but a few regions should still want the umbrella handy. New England will
still be dealing with an influx of moisture ahead of the cold front
advancing moving off the East Coast this morning. Heavy showers should
quickly race northeast and lead to a drying trend this afternoon. The same
front is forecast to stall near South Florida the next couple of days,
which combined with deep tropical moisture is forecast to trigger heavy
showers and thunderstorms. Localized urban flooding and flash flooding is
possible in parts of South Florida with a better chance for flooding on
Friday where a Slight Risk for excessive rainfall is in place. Lastly, a
frontal system tracking across the Great Lakes will be responsible for
developing scattered showers on Thursday. Temperatures at low levels are
cold enough to form even lake effect showers throughout the region for the
remainder of the work-week.
Mullinax
Graphics available at www.wpc.ncep.noaa.gov/basicwx/basicwx_ndfd.php
73, Scott KF5JRV
Pmail: KF5JRV @ KF5JRV.#NWAR.AR.USA.NA
Email: KF5JRV@GMAIL.com
Read previous mail | Read next mail
| |
